RCCB/ELCB 100mA still nuisance trip!, during lightning storms
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 Feb 8 2019, 12:30 PM
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QUOTE(hisashi84 @ Feb 8 2019, 10:13 AM) i saw "Maxguard 40kA 4P Surge Protection Device " from lazada.. about rm262. what is the different btw 40kA 4P and 40kA 2P? 4p for 3 phase electric: red, yellow, blue, neutral.  2p for single phase: phase, neutral. |
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